.particle-canvas {
    position: absolute;
    right:35px;
    bottom:0;
    margin:auto;
    z-index: 0;
}
.particle-canvas1 {
    position: absolute;
    right:35px;
    bottom:0;
    margin:auto;
    z-index: 0;
}
.demoDom img {
   max-width: 300px;
}
